Can I say'너 일본 살아?'
I have friend and I wanna ask her 'you live in Japan right?'
Can I say '너 일본 살아 맞죠?'

And also

I wanna ask her if she learn Japanese
'너 일본어 잘하시고요?'

Thank you for help

Question

Can I say'너 일본 살아?'
I have friend and I wanna ask her 'you live in Japan right?' 
Can I say '너 일본 살아 맞죠?'

And also

I wanna ask her if she learn Japanese 
'너 일본어 잘하시고요?'

Thank you for help

Answer

with honorifics- 일본 살아요? without honorifics-일본 살아?
are you learning japanese-일본어 공부하고 있어?
can you speak japanese-일본어 할 줄 알아?